A high performance nonenzymatic electrochemical glucose sensor based on polyvinylpyrrolidone-graphene nanosheets-nickel nanoparticles-chitosan nanocomposite

Talanta
Zhiguang LiuChuan Dong

Abstract

In this report, a new nanocomposite was successfully synthesized by chemical deposition of nickel nanoparticles (NiNPs) on polyvinylpyrrolidone (PVP) stabilized graphene nanosheets (GNs) with chitosan (CS) as the protective coating. The as obtained nanocomposite (PVP-GNs-NiNPs-CS) was characterized by X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Benefiting from the synergistic effect of GNs (large surface area and high conductivity), NiNPs (high electrocatalytic activity towards the glucose oxidation) and CS (good film-forming and antifouling ability), a nonenzymatic electrochemical glucose sensor was established. The nanocomposite displays greatly enhanced electrocatalytic activity towards the glucose oxidation in NaOH solution. The PVP-GNs-NiNPs-CS based electrochemical glucose sensor demonstrates good sensitivity, wide linear range (0.1 μM-0.5 mM), outstanding detection limit (30 nM), attractive selectivity, good reproducibility, high stability as well as prominent feasibility for the real sample analysis. The proposed experiment might open up a new possibility for widespread use of non-enzymatic sensors for monitoring blood glucose owing to its advantages of low cost, simple preparation...Continue Reading

Citations

Nov 17, 2015·IEEE Transactions on Nanobioscience·Feifei WangWen Li
Oct 25, 2016·Materials Science & Engineering. C, Materials for Biological Applications·Si Yin TeeEnyi Ye
Aug 16, 2016·ACS Applied Materials & Interfaces·Natarajan KarikalanChelladurai Karuppiah
Oct 25, 2016·Materials Science & Engineering. C, Materials for Biological Applications·Nafiseh Mahmoudi, Abdolreza Simchi
Mar 13, 2019·Sensors·Domenica TonelliIsacco Gualandi
Oct 4, 2020·Sensors·Thomas ChalklenSohini Kar-Narayan

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